Marsha Muir, M.D.
NPI 1740396365 · Obstetrics & Gynecology Physician · Santa Cruz, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marsha Muir, M.D. is a Obstetrics & Gynecology Physician provider in Santa Cruz, CA (NPI 1740396365).
Provider details
- NPI number
- 1740396365
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G50446 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-23
- Last updated
- 2007-07-09
Frequently asked questions
- What is Marsha Muir's NPI number?
- Marsha Muir's National Provider Identifier (NPI) is 1740396365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marsha Muir's specialty?
- Marsha Muir is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Marsha Muir located?
- Marsha Muir's practice location on file with NPPES is 1779 Dominican Way, Santa Cruz, CA 95065-1526.
- What is Marsha Muir's phone number?
- The practice phone number listed in the NPPES registry for Marsha Muir is (831) 479-4966.
- Does Marsha Muir accept Medicare?
- Marsha Muir is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marsha Muir's NPI active?
- Yes — Marsha Muir's NPI (1740396365) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.